An electron-capture gas chromatographic method for the determination of substituted urea and carbamate herbicides as 2,4-dinitrophenyl derivatives of their amine moieties

✍ Scribed by I.C. Cohen; B.B. Wheals

• Publisher: Elsevier Science
• Year: 1969
• Tongue: English
• Weight: 757 KB
• Volume: 43
• Category: Article
• ISSN: 1873-3778
• DOI: 10.1016/s0021-9673(00)99187-8

✦ Synopsis

A method is described for the determination of residues of those substituted urea and carbamate herbicides which hydrolyze to give an aromatic amine. The 2,4clinitrophenyl derivatives of the amines, .which are amenable to gas chromatography and possess strong electron-captaring properties, are prepared by a novel procedure involving reaction on a silica gel chromatoplate. The application of this method to the determination of herbicides in river waters is described. '. f-"Perxtiission to publish this work been &Len dy th& Government Chemist, . I J. ~h'OWZdO&,

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